Scotland?

Dunno if you've been up there before Ian but if not you must see Glencoe.There is very good accommodation at, https://www.clachaig.com/.That is the Clachaig Inn in Glencoe.Food, beer,accommodation and if you are lucky,live accoustic music.
Then there's Apple Cross.The road up to The Pass of the Cattle is extremely entertaining.It rises from sea level to 2050 ft thence down t'other side to the village which has a good pub,b&b and a campsite which has little wooden huts so you don't need a tent.I could go on,I love the highlands.Have a good trip I'm not at all envious.

Dunfermline Abbey more Kings buried there than anywhere whilst there take in Pittencrief Park "THE glen" views of both bridges and a full day out..... Burntisland and ROSYTH  well worth a visit ...as is Stirling the castle and the Wallace memorial there is a car museum not far away .... the Whiskey distillery Glen Turret also not far nor is where they filmed the first Dr Findlay .... the Glen of Eagles is a brilliant ride too just a few ideas on the way up or doon ... Berwick upon Tweed is well worth a visit on the borger there is a Roman exc Corbridge well worth a visit as is Harwick ...... Perth had Black Watch Museum hope this helps

And if you don't like the weather, just wait a couple of hours, it normally changes. However that can go both ways.

As a Scott, I would say the for scenery and road surfaces and no speed cameras the north west is the place to go. Any where from Loch Lomond ,Stirling Crieff Perth . Pick a road north west of this line and you can't go wrong ( there aren't too many to choose from) saying that every where in Scotland is bonny except for the industrial parts just like anywhere else in the country. Good luck

+1 on follow the weather.

Getting beyond the Glasgow/Edinburgh line has increased the enjoyment of getting up there since I discovered the short ferry crossings from Gourock to Dunoon. I use the first one you get to (heading north up the A710) at MacInnroys Point Ferry which lands at the Hunters Quay end of Dunoon.
From here you can ride through the Argyll Forest Park, around the head of Loch Fyle and your options are open for Mull and/or West Coast/Skye etc from there. (Inverarry) Running through Argyll and Bute is a gem compared to what can be trials and tribulations of the A82 / Loch Lomond stretch.
There is a good camp site (with lodges) owned by a biker called Tim at Ardnastang near to the head of Loch Sunnart but maybe not best time of year for camp site life. He does have a comfy communal lodge however which makes it a popular venue for ABR, all seasons, forum meets.  

No, the weather forecast was terrible for the weekend so I had a couple of rides out from home into Wales. Have to be next year now.